Forward channel signal-to-noise ratio with microzoning for narrowband, FDMA cellular systems

One of the major design, considerations in a cellular mobile radio system is the reduction of co-channel interference. A technique known as microzoning can reduce interference while maintaining system capacity and quality of service. Based on the worst-case mobile location at the edge of a microzone, narrowband, frequency-division multiple access cellular systems require seven-cell per cluster architectures in order to maintain a signal-to-noise ratio of 18 dB. This is contrary to the conclusion drawn from previously published work: that three-cell per cluster systems are sufficient. A three-cell per cluster architecture can maintain a signal-to-noise ratio of 15 dB